.w3-btn {
    background:#eeeeee;
    margin:0 auto;
}
.hidden {
    visibility: hidden; 
}


form li{
    display:block;
    padding:6px;
}

form li label{
    display:block;
    width:100%;
    max-width:200px;
    float:left;
}

form li input{
    clear:both;
}

h3{
    padding: 0px 8px;
}
@media (max-width:1205px){
    .visible{
        visibility:visible !important;
        
    }
    
}